CN211648047U - Fixing device of retractable blowout prevention pipe - Google Patents

Abstract

The utility model provides a fixing device of formula lubricator can fall belongs to the oil industry machinery oil recovery field. The fixing device comprises a fixing component, a lifting component, an adjusting component and a supporting component; the fixing component comprises a fixing rod; the lifting assembly comprises a lifting sleeve and a lifting rod, the bottom of the lifting sleeve is coaxially connected with the top of the fixed rod, the bottom of the lifting rod is inserted into the top of the lifting sleeve, and the lifting rod is in threaded fit with the lifting sleeve; the adjusting assembly comprises a universal head and a rotating head, the universal head comprises a connecting shaft and a movable hinged joint arranged at the top of the connecting shaft, the bottom of the connecting shaft is inserted into the rotating head, the connecting shaft is arranged in parallel with the fixed rod, and the rotating head is rotatably arranged at the top of the lifting rod; the support assembly includes a lubricator support, the lubricator support and the living hinge being mounted together. This is disclosed and is pressed from both sides tight fixedly to the lubricator through fixed subassembly, supporting component etc. has improved construction factor of safety and efficiency of construction.

Description

Fixing device of retractable blowout prevention pipe

Technical Field

The disclosure relates to the field of oil extraction of petroleum industry machinery, in particular to a fixing device of a retractable blowout prevention pipe.

Background

In the oil and gas field development process, some oil and gas water wells need to be tested in a well to obtain stratum data, and because the pressure in the well is high, in order to prevent oil gas water in the well from being sprayed out of the well mouth, environmental pollution and personal injury are caused, and the well is usually operated under the assistance of a well testing blowout preventer during well testing.

In the related art, the retractable blowout Preventer is a common well testing blowout Preventer, and mainly includes a top sheave, a blowout prevention plug, a blowout prevention pipe, a blowout prevention gate (BOP) passing through a steel wire, and other components connected in sequence. When the well testing operation is carried out, the steel wire horizontally extending out through the cable car is connected with the testing instrument through the turning of the upper pulley, and the testing instrument is vertically lowered into an oil-gas well through the blowout prevention pipe. In order to avoid the collision of the overhead pulley and the blowout preventer when the horsehead and the polished rod eye in the oil pumping unit of the oil-gas well run, after a testing instrument smoothly goes down through the blowout preventer, the blowout preventer on the upper part of the device needs to be disassembled and horizontally laid and fixed on a certain ground position between a well head and a winch, a steel wire passes through the blowout preventer and then passes through a well head sealing device to go down into the well, and testing data is recorded and taken.

However, in the process of lowering and lifting the test instrument, the steel wire rope swings in the lubricator, and the position of the lubricator horizontally placed on the ground cannot be adjusted, so that the lubricator and the steel wire are not on the same axis, and eccentric wear of the steel wire and the inner wall of the lubricator is caused. On one hand, the steel wire can cause local weak points and is very easy to be broken, so that the steel wire and a testing instrument fall into the well, on the other hand, the abrasion of the steel wire on the inner wall of the blowout prevention pipe causes the compression strength of the blowout prevention pipe to be reduced, the field pollution accident is easy to occur, the potential hazard is brought to the testing safety, and the great economic loss is caused.

SUMMERY OF THE UTILITY MODEL

The embodiment of the disclosure provides a fixing device of a retractable blowout preventer, which can ensure that the blowout preventer can keep the same axis with a lifting steel wire when being horizontally placed, avoid the mutual eccentric wear damage of the steel wire and the inner wall of the blowout preventer, and eliminate potential safety hazards. The technical scheme is as follows:

the disclosed embodiment provides a fixing device of formula lubricator can fall down, fixing device includes: the device comprises a fixing component, a lifting component, an adjusting component and a supporting component;

the fixing assembly comprises a fixing rod;

the lifting assembly comprises a lifting sleeve and a lifting rod, the bottom of the lifting sleeve is coaxially connected with the top of the fixed rod, the bottom of the lifting rod is inserted into the top of the lifting sleeve, and the lifting rod is in threaded fit with the lifting sleeve;

the adjusting assembly comprises a universal head and a rotating head, the universal head comprises a connecting shaft and a movable hinge joint arranged at the top of the connecting shaft, the bottom of the connecting shaft is inserted into the rotating head, the connecting shaft is arranged in parallel with the fixed rod, and the rotating head is rotatably arranged at the top of the lifting rod;

the support assembly includes a lubricator support, the lubricator support and the living hinge being mounted together.

Optionally, the support is semi-cylindrical tubular structure spare, periphery wall middle part department of support is provided with two otic placodes, two the otic placode is followed the circumference interval parallel arrangement of support, the articulated joint clamp is in two between the otic placode, just the top of articulated joint with the periphery wall of support offsets.

Optionally, the two ends of the outer peripheral wall of the support are respectively provided with a clamping ring, and the two clamping rings are coaxially arranged with the support.

Optionally, every the grip ring all includes first splint and second splint, first splint reach the second splint are the semi-annular structure spare, the one end of first splint with the one end of second splint is articulated each other, the other end of first splint with the other end detachably of second splint installs together.

Optionally, the adjusting part still includes adjusting hand wheel, adjusting hand wheel includes hand wheel axle, screw rod and lock nut, the hand wheel axle is rotationally simultaneously the cartridge is in activity articulated joint and two in the otic placode, the coaxial outward flange that is provided with of one end of hand wheel axle, the other end of hand wheel axle with screw rod coaxial coupling, lock nut suit is in on the screw rod, activity articulated joint and two the otic placode all presss from both sides the outward flange with between the lock nut.

Optionally, a first through hole and a second through hole are formed in the rotating head, axes of the first through hole and the second through hole are parallel to each other, the first through hole and the second through hole are arranged in an axially staggered manner, the top of the lifting rod is rotatably inserted into the first through hole, and the bottom of the connecting shaft is inserted into the second through hole.

Optionally, a rotating shaft is coaxially arranged at the top end of the lifting rod, the outer diameter of the rotating shaft is smaller than that of the lifting rod, and the top of the rotating shaft penetrates through the first through hole and is inserted with a fixing screw.

Optionally, a second screw is arranged at the bottom of the connecting shaft, the outer diameter of the second screw is smaller than that of the connecting shaft, and the bottom of the second screw penetrates through the second through hole and is sleeved with a fixing nut.

Optionally, the fixing rod is characterized in that a cone is arranged at the bottom end of the fixing rod, the cone and the fixing rod are coaxially arranged, and the small end of the cone is arranged back to the fixing rod.

Optionally, the fixing rod is provided with a spiral piece on the peripheral wall close to the cone, and the spiral piece is spirally arranged along the axis of the fixing rod.

The technical scheme provided by the embodiment of the disclosure has the following beneficial effects:

when the blowout preventer is fixed through the fixing device of the retractable blowout preventer, the fixing assembly can fix the fixing device on the ground needing to be fixed through the fixing rod. And the support assembly can clamp and fix the lubricator, namely, the lubricator can be coaxially arranged on the lubricator bracket. And because the fixing device comprises the lifting assembly, the different heights of the lifting rod in the vertical direction can be realized through the thread adjustment between the lifting sleeve and the lifting rod, and the steel wire passing through the blowout preventer moves along the central axis of the blowout preventer all the time. In addition, when the steel wire jumps up and down, because the universal joint comprises the movable hinge joint, the lubricator fixed on the bracket can be adjusted in a self-adaptive manner along with the upward and downward jumping of the steel wire under the matching of the movable hinge joint and the bracket, and the mutual abrasion between the steel wire and the inner wall of the lubricator is avoided. And after the construction is finished, the blowout prevention pipe can be taken down from the support, and the fixing rod is taken out of the ground, so that the fixing device is simple to operate and convenient to disassemble, the labor intensity is greatly reduced, and the safety factor and the construction efficiency are improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

FIG. 1 is a schematic structural view of a retaining device for a retractable lubricator according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a universal head provided in an embodiment of the present disclosure;

FIG. 3 is a top view of a securement device for a retractable lubricator according to an embodiment of the present disclosure;

FIG. 4 is a schematic view of an inner liner provided in accordance with an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a rotary joint provided in an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a lifting rod provided in the embodiment of the present disclosure;

FIG. 7 is a side view of a gimbal head provided by an embodiment of the present disclosure;

FIG. 8 is a side view of a lubricator holder provided in accordance with an embodiment of the present disclosure;

FIG. 9 is a schematic structural diagram of a support assembly provided in an embodiment of the present disclosure;

FIG. 10 is a schematic view of a clamp ring according to an embodiment of the present disclosure;

fig. 11 is a schematic structural diagram of an adjusting handwheel provided in the embodiment of the present disclosure.

The symbols in the drawings represent the following meanings:

1. a fixing assembly; 11. fixing the rod; 111. a cone; 112. a spiral sheet;

2. a lifting assembly; 21. a lifting sleeve; 211. an inner liner; 212. an outer connecting sleeve; 22. a lifting rod; 221. a rotating shaft; 222. a set screw; 223. a first screw; 23. a first bearing;

3. an adjustment assembly; 31. a universal head; 311. a connecting shaft; 312. a living hinge; 3120. a through hole; 313. a second screw; 32. rotating the head; 321. a first through hole; 322. a second through hole; 323. fixing a nut; 33. adjusting a hand wheel; 331. a hand wheel shaft; 332. a third screw; 333. an outer flange; 334. operating a hand wheel; 34. a second bearing;

4. a support assembly; 41. a lubricator mount; 411. an ear plate; 4110. a through hole; 42. a clamp ring; 421. a first splint; 422. a second splint; 423. a hinge; 400. and connecting the holes.

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

The embodiment of the disclosure provides a fixing device of a retractable blowout preventer, and as shown in fig. 1, the fixing device comprises a fixing component 1, a lifting component 2, an adjusting component 3 and a supporting component 4.

The fixing assembly 1 comprises a fixing rod 11.

The lifting assembly 2 comprises a lifting sleeve 21 and a lifting rod 22, the bottom of the lifting sleeve 21 is coaxially connected with the top of the fixing rod 11, the bottom of the lifting rod 22 is inserted into the top of the lifting sleeve 21, and the lifting rod 22 is in threaded fit with the lifting sleeve 21.

The adjusting assembly 3 comprises a universal head 31 and a rotary head 32.

Fig. 2 is a schematic structural diagram of the universal head provided in the embodiment of the present disclosure, and with reference to fig. 2, the universal head 31 includes a connecting shaft 311 and a movable hinge joint 312 disposed at the top of the connecting shaft 311, the bottom of the connecting shaft 311 is inserted into the rotating head 32, the connecting shaft 311 is disposed in parallel with the fixing rod 11, and the rotating head 32 is rotatably mounted at the top of the lifting rod 22.

Referring again to FIG. 1, support assembly 4 includes lubricator holder 41, lubricator holder 41 and living hinge 312 mounted together.

When the lubricator is fixed by the fixing device, the fixing assembly 1 can fix the fixing device on the ground to be fixed through the fixing rod 11. While support assembly 4 may provide a clamping fixation of the lubricator, i.e., a coaxial arrangement of the lubricator on lubricator holder 41. And because the fixing device comprises the lifting assembly 2, the lifting rod 22 can be adjusted at different heights in the vertical direction through the threads between the lifting sleeve 21 and the lifting rod 22, and the steel wire passing through the blowout preventer moves along the central axis of the blowout preventer all the time. In addition, when the steel wire jumps up and down, the universal head 31 comprises the movable hinge joint 312, so that the lubricator fixed on the lubricator holder 41 can be adjusted in a self-adaptive manner along with the upward and downward jumping of the steel wire under the matching of the movable hinge joint 312 and the lubricator holder 41, and the mutual abrasion between the steel wire and the inner wall of the lubricator is avoided. And, after the construction, can follow the lubricator support with the lubricator and take off, with the dead lever 11 from ground play can, so this fixing device easy operation, convenient dismantlement has greatly reduced intensity of labour, has improved factor of safety and efficiency of construction.

Optionally, a cone 111 is disposed on an end of the fixing rod 11 away from the lifting sleeve 21, the cone 111 is disposed coaxially with the fixing rod 11, and a small end of the cone 111 is disposed opposite to the fixing rod 11.

In the above implementation, since the small end of the cone 111 is disposed away from the fixing lever 11, the fixing lever 11 can be more easily inserted into a position where fixing is required.

Alternatively, the fixing rod 11 is provided with a spiral piece 112 on the peripheral wall near the cone 111, and the spiral piece 112 is spirally arranged along the axis of the fixing rod 11.

In the above implementation manner, the spiral piece 112 is of a spiral structure, so that the fixing rod 11 can be quickly drilled into a required fixing position, and meanwhile, after the fixing rod 11 is drilled into the fixing position, the contact area between the spiral piece 112 and the fixing position is large, so that the firmness of the fixing rod 11 at the fixing position can be improved.

Illustratively, the fixing rod 11 may be a ground anchor rod, the spiral piece 112 may be a ground anchor, the spiral piece 112 is welded on the fixing rod 11, and the fixing rod 11 may be a cylindrical pipe body.

Fig. 3 is a top view of a fixing device of a retractable lubricator according to an embodiment of the present disclosure, and in combination with fig. 3, the lifting sleeve 21 is a cylindrical pipe.

Referring to fig. 1 again, the lifting sleeve 21 includes an inner sleeve 211 and an outer sleeve 212, the inner sleeve 211 is coaxially fixed inside the outer sleeve 212, the top of the inner sleeve 211 is clamped on the top of the outer sleeve 212, and the bottom of the outer sleeve 212 is inserted on the top of the fixing rod 11. The inner liner 211 is internally provided with internal threads, and the outer part of the lifting rod 22 is provided with external threads matched with the inner liner 211.

In the above-described implementation, the inner sleeve 211 is configured to be threadably engaged with the lifter 22, and the height of the swivel head 32 and lubricator holder 41 attached to the lifter 22 can be simply raised and lowered by rotating the lifter 22, thereby finally adapting the fixture to the height of the lubricator. The outer connecting sleeve 212 is used for being connected and fixed with the fixing rod 11, so that the whole fixing device is fixed on the ground.

Fig. 4 is a schematic structural diagram of an inner bushing provided in an embodiment of the present disclosure, and with reference to fig. 4, exemplarily, the inner bushing 211 may be a T-shaped pipe body, a T-shaped joint is disposed at a top portion of the inner bushing 211, an outer diameter of a large end of the T-shaped joint is greater than an outer diameter of the outer bushing 212, an included angle between a connection line of a transition region of the large end and a small end of the T-shaped joint and an axis of the inner bushing 211 is a 45-degree oblique angle, an outer diameter of the small end of the inner bushing 211 is slightly smaller than an inner diameter of the outer bushing 212, and an outer wall of the outer bushing 212 and a 45-degree oblique angle position.

In the above implementation manner, the inner bushing 211 is configured as a T-shaped pipe, so that a part of the inner bushing 211 is sleeved in the outer connection sleeve 212, and another part of the inner bushing 211 is clamped at the end of the outer connection sleeve 212, which is convenient to improve the connection firmness between the inner bushing 211 and the outer connection sleeve 212, and simultaneously, the strength of the outer connection sleeve 212 supporting the inner bushing 211 is also improved.

Illustratively, the inner diameter of the top of the outer connecting sleeve 212 matches with the outer diameter of the small end of the inner sleeve 211, the bottom of the outer connecting sleeve 212 matches with the outer diameter of the fixing rod 11, and the outer connecting sleeve 212 is used for supporting the lifting rod 22 on one hand and connecting the fixing rod 11 on the other hand.

Fig. 5 is a schematic structural diagram of a rotary joint provided in an embodiment of the present disclosure, and with reference to fig. 5, optionally, a first through hole 321 and a second through hole 322 are provided on the rotary head 32, axes of the first through hole 321 and the second through hole 322 are parallel to each other, the first through hole 321 and the second through hole 322 are arranged in an alternating manner in the axial direction, a top portion of the lifting rod 22 is rotatably inserted into the first through hole 321, and a bottom portion of the connecting shaft 311 is inserted into the second through hole 322.

In the above implementation, the first through hole 321 is used for sleeving the rotating head on the lifting rod 22, the second through hole 322 is used for sleeving the rotating head 32 on the connecting shaft 311, and the universal head 31 and the lifting rod 22 are connected together through the first through hole 321 and the second through hole 322, so that the height of the universal head 31 is adjusted through the lifting rod 22.

Fig. 6 is a schematic structural diagram of the lifting rod provided in the embodiment of the present disclosure, and with reference to fig. 6, optionally, a rotating shaft 221 is coaxially disposed at a top end of the lifting rod 22, an outer diameter of the rotating shaft 221 is smaller than an outer diameter of the lifting rod 22, and a top portion of the rotating shaft 221 passes through the first through hole 321 and is inserted with the fixing screw 222.

In the above implementation, the rotation shaft 221 is disposed to enable the rotary head 32 to rotate circumferentially relative to the lifting rod 22, so as to adjust the direction of the rotary head 32, and the rotation shaft 221 is also used to connect with the rotary head 32.

Illustratively, the rotating shaft 221 is provided with an internal thread, and the fixing screw 222 is engaged with the internal thread to fix the rotating shaft 221 and the rotating head 32.

Illustratively, the lifting rod 22 may be a rod-shaped screw, and the lifting rod 22 further includes a first screw 223, and the first screw 223 is threadedly engaged with the lifting sleeve 21.

In the above implementation, the first screw 223 is matched with the lifting sleeve 21 through an external thread, so that the vertical height of the supporting component 4 is adjusted.

Referring again to fig. 1, optionally, the lifting assembly 2 further includes a first bearing 23, the first bearing 23 being interposed between the rotary head 32 and the rotary shaft 221. The first bearing 23 is used to bear the axial load and axial rotation of the liter rotary head 32.

Fig. 7 is a side view of the universal head provided in the embodiment of the present disclosure, and with reference to fig. 7, optionally, a second screw 313 is disposed at the bottom of the connecting shaft 311, an outer diameter of the second screw 313 is smaller than an outer diameter of the connecting shaft 311, and a fixing nut 323 is sleeved on the bottom of the second screw 313, which passes through the second through hole 322.

In the above embodiment, the universal head 31 can be fixed to the rotary head 32 by using the second screw 313 and the fixing nut 323 in cooperation.

Illustratively, the movable joint 312 is provided with a through hole 3120, and a connecting line direction of openings at both sides of the through hole 3120 is arranged perpendicular to an axis of the connecting shaft 311.

In the above-described implementation, provision of the penetration hole 3120 facilitates fixed mounting with the lubricator holder 41.

Illustratively, the living hinge 312 may be a fan-shaped bulb structure with the top of the fan-shaped bulb facing the outer wall of the lubricator bracket 41.

In the above implementation, the movable joint 312 is a fan-shaped ball head structural member, and the fixed angle of the lubricator bracket 41 at the top of the movable joint 312 can be automatically adjusted through the interaction between the fan-shaped ball head and the lubricator bracket 41, so as to ensure that the lubricator bracket 41 and the steel wire are on the same axis.

FIG. 8 is a side view of a lubricator holder according to an embodiment of the present disclosure, and referring to FIG. 8, optionally, the lubricator holder 41 is a semi-cylindrical tubular structure, two lugs 411 are disposed at a central position of an outer circumferential wall of the lubricator holder 41, the two lugs 411 are spaced apart and arranged in parallel along a circumferential direction of the lubricator holder 41, the living hinge 312 is sandwiched between the two lugs 411, and a top of the living hinge 312 abuts against the outer circumferential wall of the lubricator holder 41.

In the above implementation, lubricator holder 41 is a semi-cylindrical tubular structure, so that an arc-shaped groove may be formed at a side of lubricator holder 41 facing the lubricator, so that the lubricator is not easily slid down when placed on lubricator holder 41, and ear plates 411 are used to support lubricator holder 41 and also to facilitate coupling lubricator holder 41 and universal head 31 together.

Each lug plate 411 is provided with a through hole 4110, and the axis of the through hole 4110 is perpendicular to the axis of the lubricator holder 41. Through hole 4110 is used to fixedly mount lubricator holder 41 and universal head 31 together.

Fig. 9 is a schematic structural diagram of a support assembly provided by the embodiment of the present disclosure, and in combination with fig. 9, optionally, two clamping rings 42 are respectively provided at two ends of the outer circumferential wall of the lubricator holder 41, and both clamping rings 42 are coaxially arranged with the lubricator holder 41.

In the above implementation, the retaining ring 42 may facilitate retaining the lubricator on the lubricator support 41, ensuring that the lubricator does not slide off the lubricator support 41.

Illustratively, the inner diameter of lubricator holder 41 is the same as the inner diameter of clamping ring 42.

In the above implementation, the inner diameter of lubricator holder 41 is the same as the inner diameter of clamp ring 42 to further improve the stability of the lubricator placed on lubricator holder 41, and the lubricator is clamped by clamp ring 42 so that the lubricator can be firmly fixed to lubricator holder 41.

Fig. 10 is a schematic structural diagram of a clamp ring provided in an embodiment of the present disclosure, and in combination with fig. 10, each clamp ring 42 exemplarily includes a first clamp plate 421 and a second clamp plate 422, each of the first clamp plate 421 and the second clamp plate 422 is a semi-annular structural member, one end of the first clamp plate 421 is hinged to one end of the second clamp plate 422, and the other end of the first clamp plate 421 and the other end of the second clamp plate 422 are detachably mounted together.

Illustratively, one end of the first clamping plate 421 is hinged to one end of the second clamping plate 422 through a hinge 423, the other end of the first clamping plate 421 and the other end of the second clamping plate 422 are both correspondingly provided with a connecting hole 400, and a screw can be arranged in the connecting hole 400 to detachably mount the first clamping plate 421 and the second clamping plate 422 together.

Fig. 11 is a schematic structural diagram of an adjusting handwheel provided in an embodiment of the present disclosure, and with reference to fig. 11, optionally, the adjusting assembly 3 further includes an adjusting handwheel 33, where the adjusting handwheel 33 includes a handwheel shaft 331, a third screw rod 332, and a locking nut, the handwheel shaft 331 is rotatably inserted into the movable hinge joint 312 and the two ear plates 411 at the same time, one end of the handwheel shaft 331 is coaxially provided with an outer flange 333, the other end of the handwheel shaft 331 is coaxially connected with the third screw rod 332, the locking nut is sleeved on the third screw rod 332, and the movable hinge joint 312 and the two ear plates 411 are both clamped between the outer flange 333 and the locking nut.

In the above implementation, the hand wheel shaft 331 is used to connect the universal head 31 and the ear plate 411 together, and the movable joint 312 of the universal head 31 and the ear plate 411 are fastened together through the lock nut and the outer flange 333.

Illustratively, the adjustment handwheel 33 further includes an operating handwheel 334, the operating handwheel 334 being fixed to one side of the outer flange 333 by screws.

In the above implementation, the operation handwheel 334 is used to operate the handwheel shaft 331.

Optionally, the adjustment assembly 3 further comprises a second bearing 34, the second bearing 34 being interposed between the universal head 31 and the rotary head 32.

In the above implementation, second bearing 34 is used to bear the axial load of lubricator support 41, as well as axial rotation.

The above description is intended to be exemplary only and not to limit the present disclosure, and any modification, equivalent replacement, or improvement made without departing from the spirit and scope of the present disclosure is to be considered as the same as the present disclosure.

Claims (10)

1. The fixing device of the retractable blowout preventer is characterized by comprising a fixing component (1), a lifting component (2), an adjusting component (3) and a supporting component (4);

the fixing assembly (1) comprises a fixing rod (11);

the lifting assembly (2) comprises a lifting sleeve (21) and a lifting rod (22), the bottom of the lifting sleeve (21) is coaxially connected with the top of the fixing rod (11), the bottom of the lifting rod (22) is inserted into the top of the lifting sleeve (21), and the lifting rod (22) is in threaded fit with the lifting sleeve (21);

the adjusting assembly (3) comprises a universal head (31) and a rotating head (32), the universal head (31) comprises a connecting shaft (311) and a movable hinge joint (312) arranged at the top of the connecting shaft (311), the bottom of the connecting shaft (311) is inserted into the rotating head (32), the connecting shaft (311) and the fixed rod (11) are arranged in parallel, and the rotating head (32) is rotatably arranged at the top of the lifting rod (22);

the support assembly (4) comprises a lubricator holder (41), the lubricator holder (41) and the living hinge (312) being mounted together.

2. The fixing device of the disposable lubricator according to claim 1, wherein the lubricator holder (41) is a semi-cylindrical tubular structure, two lugs (411) are provided at the middle position of the outer circumference of the lubricator holder (41), the two lugs (411) are spaced and arranged in parallel along the circumference of the lubricator holder (41), the living hinge (312) is clamped between the two lugs (411), and the top of the living hinge (312) is against the outer circumference of the lubricator holder (41).

3. A collapsible lubricator fixture according to claim 2, characterised in that the lubricator holder (41) is provided with clamping rings (42) at each end of the perimeter wall, both clamping rings (42) being arranged coaxially with the lubricator holder (41).

4. The submersible lubricator fixture according to claim 3, wherein each of the clamp rings (42) comprises a first clamp plate (421) and a second clamp plate (422), each of the first clamp plate (421) and the second clamp plate (422) is a semi-annular structure, one end of the first clamp plate (421) and one end of the second clamp plate (422) are hinged to each other, and the other end of the first clamp plate (421) and the other end of the second clamp plate (422) are detachably mounted together.

5. The fixing device of the disposable lubricator according to claim 2, wherein the adjusting assembly (3) further comprises an adjusting handwheel (33), the adjusting handwheel (33) comprises a handwheel shaft (331), a third screw rod (332) and a locking nut, the handwheel shaft (331) is rotatably inserted into the movable hinge joint (312) and the two ear plates (411) at the same time, one end of the handwheel shaft (331) is coaxially provided with an outer flange (333), the other end of the handwheel shaft (331) is coaxially connected with the third screw rod (332), the locking nut is sleeved on the third screw rod (332), and the movable hinge joint (312) and the two ear plates (411) are clamped between the outer flange (333) and the locking nut.

6. The submersible lubricator fixture according to any one of claims 1 to 5, wherein the swivel head (32) is provided with a first through hole (321) and a second through hole (322), the axes of the first through hole (321) and the second through hole (322) are parallel to each other, the first through hole (321) and the second through hole (322) are arranged alternately in the axial direction, the top of the lifting rod (22) is rotatably inserted into the first through hole (321), and the bottom of the connecting shaft (311) is inserted into the second through hole (322).

7. The fixing device of the retractable lubricator according to claim 6, wherein the elevating rod (22) is coaxially provided at a top end thereof with a rotating shaft (221), an outer diameter of the rotating shaft (221) is smaller than an outer diameter of the elevating rod (22), and a top of the rotating shaft (221) passes through the first through hole (321) and is inserted with a fixing screw (222).

8. The fixing device of the retractable lubricator according to claim 6, wherein a second screw (313) is disposed at the bottom of the connecting shaft (311), the outer diameter of the second screw (313) is smaller than the outer diameter of the connecting shaft (311), and the bottom of the second screw (313) passes through the second through hole (322) and is sleeved with a fixing nut (323).

9. The device for fixing a retractable lubricator according to any one of claims 1 to 5, wherein the bottom end of the fixing rod (11) is provided with a cone (111), the cone (111) is coaxially arranged with the fixing rod (11), and the small end of the cone (111) is arranged to face away from the fixing rod (11).

10. The nozzle-holder assembly of claim 9, wherein the fixing rod (11) has a spiral piece (112) on the outer circumferential wall of the cone (111), and the spiral piece (112) is spirally arranged along the axis of the fixing rod (11).

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